Spin polarization driven by a charge-density wave in monolayer 1T−TaS2

Handle URI:
http://hdl.handle.net/10754/346740
Title:
Spin polarization driven by a charge-density wave in monolayer 1T−TaS2
Authors:
Zhang, Qingyun; Gan, Liyong; Cheng, Yingchun; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
Using first-principles calculations, we investigate the electronic and vibrational properties of monolayer T-phase TaS2. We demonstrate that a charge-density wave is energetically favorable at low temperature, similar to bulk 1T-TaS2. Electron-phonon coupling is found to be essential for the lattice reconstruction. The charge-density wave results in a strong localization of the electronic states near the Fermi level and consequently in spin polarization, transforming the material into a magnetic semiconductor with enhanced electronic correlations. The combination of inherent spin polarization with a semiconducting nature distinguishes the monolayer fundamentally from the bulk compound as well as from other two-dimensional transition metal dichalcogenides. Monolayer T-phase TaS2 therefore has the potential to enable two-dimensional spintronics. © 2014 American Physical Society.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Spin polarization driven by a charge-density wave in monolayer 1T−TaS2, 2014, 90 (8) Physical Review B
Publisher:
American Physical Society (APS)
Journal:
Physical Review B
Issue Date:
6-Aug-2014
DOI:
10.1103/PhysRevB.90.081103
Type:
Article
ISSN:
1098-0121; 1550-235X
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevB.90.081103
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Qingyunen
dc.contributor.authorGan, Liyongen
dc.contributor.authorCheng, Yingchunen
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2015-03-17T06:00:42Zen
dc.date.available2015-03-17T06:00:42Zen
dc.date.issued2014-08-06en
dc.identifier.citationSpin polarization driven by a charge-density wave in monolayer 1T−TaS2, 2014, 90 (8) Physical Review Ben
dc.identifier.issn1098-0121en
dc.identifier.issn1550-235Xen
dc.identifier.doi10.1103/PhysRevB.90.081103en
dc.identifier.urihttp://hdl.handle.net/10754/346740en
dc.description.abstractUsing first-principles calculations, we investigate the electronic and vibrational properties of monolayer T-phase TaS2. We demonstrate that a charge-density wave is energetically favorable at low temperature, similar to bulk 1T-TaS2. Electron-phonon coupling is found to be essential for the lattice reconstruction. The charge-density wave results in a strong localization of the electronic states near the Fermi level and consequently in spin polarization, transforming the material into a magnetic semiconductor with enhanced electronic correlations. The combination of inherent spin polarization with a semiconducting nature distinguishes the monolayer fundamentally from the bulk compound as well as from other two-dimensional transition metal dichalcogenides. Monolayer T-phase TaS2 therefore has the potential to enable two-dimensional spintronics. © 2014 American Physical Society.en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevB.90.081103en
dc.rightsArchived with thanks to Physical Review Ben
dc.titleSpin polarization driven by a charge-density wave in monolayer 1T−TaS2en
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Ben
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorZhang, Qingyunen
kaust.authorGan, Liyongen
kaust.authorCheng, Yingchunen
kaust.authorSchwingenschlögl, Udoen
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